4u^2+9=-12u

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Solution for 4u^2+9=-12u equation:


Simplifying
4u2 + 9 = -12u

Reorder the terms:
9 + 4u2 = -12u

Solving
9 + 4u2 = -12u

Solving for variable 'u'.

Reorder the terms:
9 + 12u + 4u2 = -12u + 12u

Combine like terms: -12u + 12u = 0
9 + 12u + 4u2 = 0

Factor a trinomial.
(3 + 2u)(3 + 2u) = 0

Subproblem 1

Set the factor '(3 + 2u)' equal to zero and attempt to solve: Simplifying 3 + 2u = 0 Solving 3 + 2u = 0 Move all terms containing u to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 2u = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2u = 0 + -3 2u = 0 + -3 Combine like terms: 0 + -3 = -3 2u = -3 Divide each side by '2'. u = -1.5 Simplifying u = -1.5

Subproblem 2

Set the factor '(3 + 2u)' equal to zero and attempt to solve: Simplifying 3 + 2u = 0 Solving 3 + 2u = 0 Move all terms containing u to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + 2u = 0 + -3 Combine like terms: 3 + -3 = 0 0 + 2u = 0 + -3 2u = 0 + -3 Combine like terms: 0 + -3 = -3 2u = -3 Divide each side by '2'. u = -1.5 Simplifying u = -1.5

Solution

u = {-1.5, -1.5}

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